/*********************************************************************
*
*      Copyright (C) 2002 Andrew Khan
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***************************************************************************/

package jxl.biff;

/**
 * Represents a built in, rather than a user defined, style. This class is used
 * by the FormattingRecords class when writing out the hard* coded styles
 */
class BuiltInStyle extends WritableRecordData {
	
	/**
	 * The XF index of this style
	 */
	private int xfIndex;
	
	/**
	 * The reference number of this style
	 */
	private int styleNumber;

	/**
	 * Constructor
	 *
	 * @param xfind
	 *            the xf index of this style
	 * @param sn
	 *            the style number of this style
	 */
	public BuiltInStyle(int xfind, int sn) {
		super(Type.STYLE);

		xfIndex = xfind;
		styleNumber = sn;
	}

	/**
	 * Abstract method implementation to get the raw byte data ready to write
	 * out
	 *
	 * @return The byte data
	 */
	public byte[] getData() {
		byte[] data = new byte[4];

		IntegerHelper.getTwoBytes(xfIndex, data, 0);

		// Set the built in bit
		data[1] |= 0x80;

		data[2] = (byte) styleNumber;

		// Set the outline level
		data[3] = (byte) 0xff;

		return data;
	}
}
